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Class Information
Number: 175/363
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Cross axle > Separable supports
Description: Apparatus in which (1) one or more of the spaced supporting devices for the cross axle are readily detachable from the bit head to release the axle or (2) the bit head consists of plural mating sections which are readily detachable from each other to release the cross axle.










Patents under this class:

Patent Number Title Of Patent Date Issued
6708786 Mounting attachment and bearing system for an industrial earth-boring cutter Mar. 23, 2004
5577565 Compact roller cutter Nov. 26, 1996
5487435 Mounting system for raise and shaft cutters Jan. 30, 1996
5421422 Roller cutter mount for tunneling machine Jun. 6, 1995
RE34167 Drill bit and roller cutter for said drill bit Jan. 26, 1993
4832136 Drill bit and roller cutter for said drill bit May. 23, 1989
4760890 Cutter assembly for rotary boring of earth Aug. 2, 1988
4454923 Holding device for boring head tools or the like Jun. 19, 1984
4202418 Roller cutter mounts May. 13, 1980











 
 
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